NATO Stock Number
5305-00-174-4305
Sold in multiples of
DEMIL
NO
Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.350 inches
Fastener Length
0.440 inches
Head Style
Pan
Head Diameter
Between 0.325 inches and 0.350 inches
Head Height
Between 0.135 inches and 0.155 inches
Washer Quantity
1
Internal Drive Style
Slot
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Hardness Rating
40.0 rockwell c fastener and 50.0 rockwell c fastener
Primary Washer Outside Diameter
0.325 inches
Primary Washer Style
Flat external teeth
Primary Washer Material Thickness
Between 0.023 inches and 0.028 inches
Material
Steel comp 1010 fastener or steel comp 1020 fastener or steel comp 1022 fastener
Material
Steel primary washer
Material Specification
66 federal standard all material responses fastener
Thread Series Designator
Unc
